Apparatus for producing boiling water.



* matic valve whic UNITED STATES- PATENT OFFICE.

HUGO JUNKERS, or AAOHEN, GERMANY.

APPARATUS FOR PRODUCING .BOllJNG WATER.

Y No. 816,101.

Specification of Letters Patent.

Application filed April 3, 1902- Serial No; 101,239.

Patented. March 27, 1906.

is a diagrammatic vertical central section, showing one embodiment of my lHVGIltlOIl,

and Fig. 2 is an enlarged vertical central section-of an automatic spring-loaded valve such as is shown in Fig. 1.

In the deliveryip'e there is a loaded autoprovides back pressure equivalent to the pressure of the superheated water set up by the heating and superheating f the said water and prevents, 'on the one hand, the vaporization of the superheated water and, on the other hand, by automatically opening prevents overstepping of this pressure. The possibility of overstepping this pressure occurs during the increase in volume of the water caused by heating. Theloaded automatic delivery-valve allows, this water of expansion to escape, and thus obviates the danger of the apparatus being burst thereby. It thus serves to some extent-as a safety-valve and as a draw-0E valve simultaneously, and since it always comes into operation both when water is drawn off and when the water of expansion escapes the danger of setting fast and amming, which 00- I ours in ordinary safety-valves, which only open under exceptional circumstances, is obviated. Boiling water is drawn off by opening a cook or valve arranged in the supplypipe, since the higher pressure in the water-' supply (plpe then overcomes the resistance of the 0a ed automatic delivery-valve and cold water runs in at the bottom, while the hot water runs out at the top.

i Figure 1 shows, byway of example, an apparatus heated by gas for carrying this method into practice. a is the water-supply pipe, provided with the water-valve b; d,

the vessel completely filled with water, from the to of which vessel when the valve 12 is opene the water'flows out through the delivery-pipe e, at the same time overcoming the resistance in the loaded, automatic valve 00, which is mounted in the pipe e. A gas heater, the'eduction-pipe for the products of combustion being arranged around the vessel d. In this apparatus the s indle w of the valve 00 is extended through t e casing x as shown in Fig. 2, and is provided at its outer end with a hand-wheel x or the like, so that during the work the disk 00 of the valvecan be lifted from its seat'ac against which it is normally held by the spring as", in order that impurites may be removed, and the disk can be ground on its seat, so as to insure the for mation of a fluid-tight joint.

It will be observed that the reservoir will contain a comparatively large body of water when the capacity of the inlet and outlet pipes is considered, and it is thus possible to maintain almost constantly a large supply of hot water, which can be drawn from whenever desired.

. I am aware that it has heretofore been proposed to run water through a spiral passage for the purpose of heating it and to provide the inletme to said passage with a valve for contro ling the flow of water therethrough and also to provide an open stand-pipe leading from'the passage to permit the escape of steam generated in said passage. Such device, however, is not capable of heating and keeping heated a large body of water for use when required and is primarily designed only for the purpose of heating a current of passage being of little, if any, more transverse area than the inlet or outlet pipe.

, What I claim is' An apparatus for producing boiling water consisting of a closed reservoir filled with water as it flows through the passage, said water having a supply-pipe entering its lower being such that t e automatic valve operates Q as a safety and delivery device and the inletvalve operates to govern the flow to and to ice discharge the water from the reservoir through the delivery-pipe, substantially as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

HUGO J UNKERS.

' Witnesses: I

'. JOHN B. ADAMS,

HENRY QUADFLIEG, 

